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Table 2 Perfusion parameter of controls (n = 79) and DM patients (n = 120) with different BMI

From: The additive effects of obesity on myocardial microcirculation in diabetic individuals: a cardiac magnetic resonance first-pass perfusion study

 Controls (n = 79)DM patients (n = 120)
Normal-weight (n = 33)Overweight (n = 27)Obese (n = 19)P valueåNormal-weight (n = 51)Overweight (n = 29)Obese (n = 40)P valueß
Basal
 Upslope2.26 ± 0.841.82 ± 0.551.35 ± 0.42*0.0001.85 ± 0.531.40 ± 0.34*1.10 ± 0.35* §0.000
 TTM (sec)25.22 ± 10.8532.17 ± 17.4233.17 ± 14.120.08435.36 ± 17.0535.75 ± 18.8335.36 ± 15.520.929
 MaxSI17.24 ± 6.5416.27 ± 4.1413.24 ± 3.07*0.02816.34 ± 5.1811.33 ± 3.76*9.33 ± 3.01*0.000
 MaxSI (- baseline)15.93 ± 4.2613.29 ± 4.6110.62 ± 2.65*0.00012.63 ± 4.408.06 ± 2.58*7.31 ± 2.52*0.000
 SI (baseline)3.72 ± 1.433.35 ± 0.952.63 ± 0.80*0.0063.13 ± 1.422.29 ± 0.87*2.20 ± 0.95*0.000
Mid-ventricular
 Upslope2.93 ± 1.032.31 ± 0.72*1.80 ± 0.60*0.0002.37 ± 0.701.99 ± 0.54*1.37 ± 0.41* §0.000
 TTM (sec)27.31 ± 13.8631.68 ± 16.6133.25 ± 13.830.31334.19 ± 16.1435.93 ± 20.1334.26 ± 12.550.884
 MaxSI21.78 ± 7.8320.59 ± 5.3216.58 ± 3.96*0.01821.29 ± 6.5415.01 ± 4.14*12.22 ± 3.91*0.000
 MaxSI (- baseline)19.63 ± 5.2516.74 ± 5.4113.14 ± 3.42*0.00016.38 ± 5.3910.83 ± 3.48*9.49 ± 3.33*0.000
 SI (Baseline)4.83 ± 1.604.36 ± 1.513.39 ± 0.96*0.0044.22 ± 1.733.08 ± 1.00*2.86 ± 1.06*0.000
Apex
 Upslope3.69 ± 1.192.95 ± 0.85*2.19 ± 0.62*0.0003.03 ± 0.912.44 ± 0.70*1.80 ± 0.57* §0.000
 TTM (sec)27.81 ± 13.8732.43 ± 16.5535.01 ± 14.620.22134.20 ± 15.7536.74 ± 19.9435.26 ± 13.310.794
 MaxSI26.90 ± 10.2826.67 ± 6.8420.76 ± 4.420.02124.42 ± 8.5019.94 ± 5.17*16.19 ± 4.91*0.000
 MaxSI (- baseline)24.32 ± 7.7221.37 ± 5.4116.50 ± 4.03*0.00021.52 ± 7.4013.82 ± 4.21*12.68 ± 4.10*0.000
 SI (baseline)5.80 ± 2.065.27 ± 2.054.36 ± 1.470.0415.57 ± 2.164.15 ± 1.33*3.70 ± 1.38*0.000
  1. Values are means ± standard deviations
  2. P valueå, P valueß: P values refer to the differences among three subgroups across different BMI scales within controls (å) or DM patients (ß) based on Fisher’s exact test or one-way analysis of variance followed by Bonferroni’s post hoc test; *P < 0.017 versus Normal weight group; §P < 0.017 versus overweight group